A generator spindle integrating vibration and temperature monitoring

Abstract

This utility model belongs to the field of generator spindle technology, and particularly relates to a generator spindle integrating vibration and temperature monitoring. It includes a base plate, a fixed plate, a buffer sleeve, a housing, a spindle body, and a fixed plate. Two fixed plates arranged side-by-side are fixedly connected to the top of the base plate. A buffer sleeve is rotatably mounted on each fixed plate, and the housing is fixedly supported between the two buffer sleeves. The two buffer sleeves have different inner diameters. The spindle body is rotatably mounted inside the housing. A fixed plate is installed on the left side of the housing. One end of the spindle body passes through the fixed plate and forms a tight rotational contact with it. Through the cooperation of a vibration detector, a temperature detector, a controller, and an alarm, the operating status of the spindle body is monitored in real time. When abnormal vibration or excessively high temperature is detected, the alarm sounds, reminding the operator to handle the situation promptly, effectively preventing potential failures and improving the safety of equipment operation.

Description

Technical Field

[0001] This utility model belongs to the field of generator spindle technology, and in particular relates to a generator spindle that integrates vibration and temperature monitoring. Background Technology

[0002] With the increasing demands for reliability and intelligence in power generation equipment, the generator, as a core energy conversion device, directly impacts the safety and efficiency of the entire machine through the operation of its main shaft system. During long-term high-speed rotation, the generator main shaft plays a crucial role in transmitting torque and supporting the rotor, making its structural stability paramount.

[0003] During long-term high-speed operation, the generator spindle is prone to abnormal vibration due to factors such as load changes and component wear. Increased vibration is usually a precursor to mechanical failure. If it is not detected and dealt with in time, it can easily lead to serious equipment problems such as bearing damage and shaft cracks. At the same time, the spindle temperature can rise abnormally due to friction and overload operation. Sustained high temperature will accelerate material aging, reduce lubrication performance, and thus shorten the service life of the spindle.

[0004] Therefore, there is a particular need for a generator spindle that integrates vibration and temperature monitoring to solve the above problems. Utility Model Content

[0005] To overcome the shortcomings of generator spindles during long-term high-speed operation, such as the lack of real-time monitoring of vibration and temperature rise, which makes it difficult to predict faults and thus leads to bearing damage, shaft cracks and shortened lifespan, this utility model provides a generator spindle with integrated vibration and temperature monitoring.

[0006] This utility model is achieved through the following technical approach: A generator main shaft integrating vibration and temperature monitoring includes a base plate, a fixed plate, a buffer sleeve, a housing, a main shaft body, a fixed plate, a bearing body, and an outer bearing seat. Two fixed plates arranged side-by-side are fixedly connected to the top of the base plate. A buffer sleeve is rotatably mounted on each fixed plate, and the housing is fixedly supported between the two buffer sleeves. The two buffer sleeves have different inner diameters. The main shaft body is rotatably mounted inside the housing. A fixed plate is installed on the left side of the housing. One end of the main shaft body passes through the fixed plate and forms a tight rotational contact with it. Outer bearing seats are fixedly connected to the inner walls of both sides of the housing. Each outer bearing seat is internally connected to... The bearing body and the spindle body horizontally penetrate the two bearing bodies and are interference-fitted with the inner ring of the bearing body. It also includes a mounting bracket, a vibration detector, a connecting bracket, a temperature detector, an alarm, and a controller. The mounting bracket is installed between the upper parts of the two fixed plates, and the vibration detector is installed on the mounting bracket. The detection rod of the vibration detector is in contact with the outer wall of the housing. The connecting bracket is installed on the left side of the base plate, and the temperature detector is installed on the upper part of the connecting bracket. The detection end of the temperature detector is exposed near the end of the spindle body. The controller and the alarm are installed on the upper part of the left fixed plate, and the vibration detector, the temperature detector, and the alarm are all electrically connected to the controller.

[0007] Optionally, it also includes a counterweight, with the counterweight fixed to the top of the base plate and the fixing plate contacting the surface of the counterweight.

[0008] Optionally, it also includes buffer rings, with multiple buffer rings equidistantly distributed along the axial direction fixed inside the housing, the main shaft body passing through the center of the multiple buffer rings, and the outer wall of the main shaft body being tightly fitted with the buffer rings.

[0009] Optionally, the bearing body is a ceramic ball bearing.

[0010] Optionally, the temperature detector is a non-contact infrared temperature detector.

[0011] Optionally, the alarm is an audible and visual alarm.

[0012] Beneficial effects: 1. By coordinating vibration detectors, temperature detectors, controllers and alarms, the operating status of the spindle body can be monitored in real time. When abnormal vibration or excessive temperature is detected, the alarm will sound to remind the operator to deal with it in time, effectively prevent potential failures and improve the safety of equipment operation.

[0013] 2. By setting multiple buffer rings inside the housing, the spindle body is subjected to uniform radial constraint during rotation, which effectively suppresses radial runout and high-frequency vibration, thereby reducing the dynamic load on the bearing body and significantly extending the service life of the bearing body and the spindle body. Attached Figure Description

[0014] Figure 1This is a three-dimensional structural diagram of the present invention.

[0015] Figure 2 This is a three-dimensional structural diagram of the components of this utility model, including the buffer sleeve, housing, and main shaft body.

[0016] Figure 3 This is a three-dimensional structural diagram of the components of this utility model, including the housing, main shaft body, and fixed disk.

[0017] Figure 4 This is a partial cross-sectional view of the housing, outer bearing seat, and buffer ring components of this utility model.

[0018] Figure 5 This is a three-dimensional structural diagram of the vibration detector, temperature detector, and alarm components of this utility model.

[0019] Reference numerals: 1. Base plate, 2. Counterweight, 3. Fixing plate, 4. Buffer sleeve, 5. Housing, 6. Main shaft body, 7. Fixing plate, 8. Bearing body, 81. Outer bearing seat, 9. Buffer ring, 10. Mounting bracket, 11. Vibration detector, 12. Connecting bracket, 13. Temperature detector, 14. Alarm, 15. Controller. Detailed Implementation

[0020] Example: A generator spindle integrating vibration and temperature monitoring, such as Figures 1-5As shown, the assembly includes a base plate 1, a counterweight 2, a fixed plate 3, a buffer sleeve 4, a housing 5, a main shaft body 6, a fixed disc 7, a bearing body 8, an outer bearing seat 81, and a buffer ring 9. A counterweight 2 is fixedly connected to the top of the base plate 1 to increase its stability. Two parallel fixed plates 3 are fixedly connected to the top of the base plate 1, contacting the surface of the counterweight 2. A buffer sleeve 4 is rotatably mounted on each fixed plate 3. The housing 5 is fixedly supported between the two buffer sleeves 4. The two buffer sleeves 4 have different inner diameters to accommodate different outer diameter journals on the housing. The main shaft body 6 is rotatably mounted inside the housing 5. The left side of the housing is connected by bolts. A fixed disk 7 is fixedly attached. The left end of the spindle body 6 passes through the fixed disk 7 and forms a tight rotational contact with it. External bearing seats 81 are fixedly connected to the inner walls of both sides of the housing 5. Each external bearing seat 81 is internally connected to a bearing body 8. The spindle body 6 horizontally passes through two bearing bodies 8 and is interference-fitted with the inner ring of the bearing body 8 to achieve stable rotational support. The bearing body 8 is a ceramic ball bearing, which has high rigidity, high temperature resistance, low friction, and anti-electrolytic corrosion characteristics, suitable for high-speed, heavy-load conditions. Multiple buffer rings 9 are fixedly connected internally to the housing 5, equidistantly distributed along the axial direction. The spindle body 6 passes through the center of multiple buffer rings 9, and the main... The outer wall of the shaft body 6 is tightly fitted with the buffer ring 9 to suppress radial runout of the main shaft body 6 and absorb high-frequency vibration. It also includes a mounting bracket 10, a vibration detector 11, a connecting bracket 12, a temperature detector 13, an alarm 14, and a controller 15. The mounting bracket 10 is bolted between the upper parts of the two fixing plates 3. The vibration detector 11 is bolted to the mounting bracket 10. The downward-extending detection rod of the vibration detector 11 maintains contact with the outer wall of the housing 5 to collect vibration signals from the housing 5 in real time. The connecting bracket 12 is bolted to the left side of the base plate 1. The temperature detector 13 is bolted to the upper part of the connecting bracket 12. The detection end of the detector 13 faces upward and is close to the exposed part of the left end of the spindle body 6. The temperature detector 13 is a non-contact infrared temperature detector, which can monitor the temperature of the spindle body 6 in real time without interfering with the rotation of the spindle body 6. The controller 15 and the alarm 14 are fixed to the upper part of the left fixing plate 3 by bolts. The vibration detector 11, the temperature detector 13 and the alarm 14 are all electrically connected to the controller 15. The alarm 14 is an audible and visual alarm, which can emit sound and flash signals at the same time in abnormal conditions, improving the visibility of the warning and the response efficiency. The controller 15 is a programmable logic controller, model Huichuan Easy 521-24T4DT.

[0021] During use, the operator fixes the base plate 1 to the generator mounting base and connects the left and right ends of the main shaft body 6 to the generator rotor and the prime mover, respectively. During equipment operation, the main shaft body 6 rotates at high speed, and the bearing body 8 provides stable support to ensure smooth rotation. The vibration generated during rotation is transmitted to the housing 5 through the main shaft body 6 and is initially attenuated by the buffer ring 9 and the buffer sleeve 4. The vibration detector 11 continuously monitors the vibration amplitude and frequency of the outer wall of the housing 5. When the vibration exceeds the preset threshold, the vibration detector 11 generates an electrical signal and transmits it to the controller 15. The controller 15 responds immediately and drives the alarm 14 to issue an audible and visual alarm, reminding the operator to troubleshoot the fault in time. At the same time, the temperature detector 13 continuously monitors the surface temperature of the main shaft body 6 in a non-contact manner. When the temperature rises abnormally and exceeds the set upper limit, the temperature detector 13 also generates an electrical signal and transmits it to the controller 15. The controller 15 then triggers an audible and visual alarm to realize temperature over-limit warning. Through the dual monitoring mechanism, proactive warning can be achieved in the early stage of faults, effectively avoiding equipment problems and extending the service life of the main shaft body 6.

Claims

1. A generator spindle integrating vibration and temperature monitoring, comprising a base plate (1), a fixed plate (3), a buffer sleeve (4), a housing (5), a spindle body (6), a fixed disk (7), a bearing body (8), and an outer bearing seat (81), wherein two fixed plates (3) arranged side by side are fixedly connected to the top of the base plate (1), a buffer sleeve (4) is rotatably arranged on each fixed plate (3), a housing (5) is fixedly supported between the two buffer sleeves (4), the two buffer sleeves (4) have different inner diameters, the spindle body (6) is rotatably arranged inside the housing (5), a fixed disk (7) is installed on the left side of the housing, one end of the spindle body (6) passes through the fixed disk (7) and forms a tight rotational contact with the fixed disk (7), outer bearing seats (81) are fixedly connected to the inner walls on both sides of the housing (5), a bearing body (8) is connected inside each outer bearing seat (81), the spindle body (6) horizontally passes through the two bearing bodies (8) and is interference-fitted with the inner ring of the bearing body (8), characterized in that, It also includes a mounting bracket (10), a vibration detector (11), a connecting bracket (12), a temperature detector (13), an alarm (14), and a controller (15). The mounting bracket (10) is installed between the upper parts of the two fixing plates (3). The vibration detector (11) is installed on the mounting bracket (10). The detection rod of the vibration detector (11) is in contact with the outer wall of the housing (5). The connecting bracket (12) is installed on the left side of the bottom plate (1). The temperature detector (13) is installed on the upper part of the connecting bracket (12). The detection end of the temperature detector (13) is exposed near the end of the main shaft body (6). The controller (15) and the alarm (14) are installed on the upper part of the left fixing plate (3). The vibration detector (11), the temperature detector (13), and the alarm (14) are all electrically connected to the controller (15).

2. A generator spindle integrating vibration and temperature monitoring according to claim 1, characterized in that, It also includes a counterweight (2), a base plate (1) with the counterweight (2) fixed to the top, and a fixing plate (3) in contact with the surface of the counterweight (2).

3. A generator spindle integrating vibration and temperature monitoring according to claim 2, characterized in that, It also includes a buffer ring (9), and multiple buffer rings (9) are fixed inside the housing (5) and distributed equidistantly along the axial direction. The main shaft body (6) passes through the center of multiple buffer rings (9), and the outer wall of the main shaft body (6) is in close contact with the buffer rings (9).

4. A generator spindle integrating vibration and temperature monitoring according to claim 3, characterized in that, The bearing body (8) is a ceramic ball bearing.

5. A generator spindle integrating vibration and temperature monitoring according to claim 4, characterized in that, The temperature detector (13) is a non-contact infrared temperature detector.

6. A generator spindle integrating vibration and temperature monitoring according to claim 5, characterized in that, The alarm (14) is an audible and visual alarm.

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